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Message-ID: <alpine.LRH.2.21.2010150504360.26012@namei.org>
Date: Thu, 15 Oct 2020 05:07:12 +1100 (AEDT)
From: James Morris <jmorris@...ei.org>
To: Mickaël Salaün <mic@...ikod.net>
cc: linux-kernel@...r.kernel.org, "Serge E . Hallyn" <serge@...lyn.com>,
Al Viro <viro@...iv.linux.org.uk>, Richard Weinberger <richard@....at>,
Andy Lutomirski <luto@...capital.net>,
Anton Ivanov <anton.ivanov@...bridgegreys.com>,
Arnd Bergmann <arnd@...db.de>,
Casey Schaufler <casey@...aufler-ca.com>, Jann Horn <jannh@...gle.com>,
Jeff Dike <jdike@...toit.com>, Jonathan Corbet <corbet@....net>,
Kees Cook <keescook@...omium.org>,
Michael Kerrisk <mtk.manpages@...il.com>,
Shuah Khan <shuah@...nel.org>,
Vincent Dagonneau <vincent.dagonneau@....gouv.fr>,
kernel-hardening@...ts.openwall.com, linux-api@...r.kernel.org,
linux-arch@...r.kernel.org, linux-doc@...r.kernel.org,
linux-fsdevel@...r.kernel.org, linux-kselftest@...r.kernel.org,
linux-security-module@...r.kernel.org, x86@...nel.org,
Mickaël Salaün <mic@...ux.microsoft.com>
Subject: Re: [PATCH v21 07/12] landlock: Support filesystem access-control
On Thu, 8 Oct 2020, Mickaël Salaün wrote:
> +config ARCH_EPHEMERAL_STATES
> + def_bool n
> + help
> + An arch should select this symbol if it does not keep an internal kernel
> + state for kernel objects such as inodes, but instead relies on something
> + else (e.g. the host kernel for an UML kernel).
> +
This is used to disable Landlock for UML, correct? I wonder if it could be
more specific: "ephemeral states" is a very broad term.
How about something like ARCH_OWN_INODES ?
--
James Morris
<jmorris@...ei.org>
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